Perinatal Outcomes Following Change in Clinical Criteria in for Treatment of Maternal Hypertension

The purpose of this study is observe outcomes before and after a change in clinical practice in the threshold for management of severe hypertension in pregnancy and the post-partum period. Outcomes will be observed for 10 months under the current (traditional) clinical blood pressure threshold for acute treatment of hypertension, which is \>= 160 millimeters of mercury (mmHg) systolic blood pressure (SBP). This will be followed by one month of education about rationale for the new SBP threshold of \>= 180 mmHg and change of clinical guidelines. Then, there will be 10 months of observation after adopting the updated clinical threshold for acute antihypertensive treatment (\>= 180 SBP).